package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.annotation.AutoFill;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.dto.PasswordEditDTO;
import com.sky.entity.Employee;
import com.sky.enumeration.OperationType;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import lombok.Value;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;

@Slf4j
@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // TODO 后期需要进行md5加密，然后再进行比对
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        log.info(password);
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    @Override
    public void add(EmployeeDTO employeeDTO) {
        Employee emp = new Employee();
        //属性名要一样才行
        BeanUtils.copyProperties(employeeDTO,emp);
        emp.setStatus(StatusConstant.ENABLE);
        emp.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));
        employeeMapper.insert(emp);
    }

    @Override
    public PageResult page(EmployeePageQueryDTO employeePageQueryDTO) {
        PageResult pageResult = new PageResult();
        PageHelper.startPage(employeePageQueryDTO.getPage(),employeePageQueryDTO.getPageSize());
        Page<Employee> page= employeeMapper.pageselect(employeePageQueryDTO);
        pageResult.setTotal(page.getTotal());
        pageResult.setRecords(page.getResult());
        return pageResult;
    }


    @Override
    public void state(Integer states, Long id) {
        Employee emp =Employee.builder()
                .status(states)
                .id(id)
                .build();
        employeeMapper.update(emp);
    }

    @Override
    public Employee getbyid(Long id) {
        return employeeMapper.getbyid(id);
    }


    @Override
    public void update(EmployeeDTO employeeDTO) {
        /*Employee employee = Employee.builder()
                .id(employeeDTO.getId())
                .name(employeeDTO.getName())
                .idNumber(employeeDTO.getIdNumber())
                .phone(employeeDTO.getPhone())
                .username(employeeDTO.getUsername())
                .updateTime(LocalDateTime.now())
                .updateUser(BaseContext.getCurrentId())
                .sex(employeeDTO.getSex())
                .build();*/
        Employee employee = new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);
        employeeMapper.update(employee);
    }

    @Override
    public void passwordedit(PasswordEditDTO passwordEditDTO) {
        passwordEditDTO.setEmpId(BaseContext.getCurrentId());
        Employee e = employeeMapper.getbyid(passwordEditDTO.getEmpId());
        passwordEditDTO.setOldPassword(
                DigestUtils.md5DigestAsHex(
                        passwordEditDTO.getOldPassword().getBytes()));
        if(passwordEditDTO.getOldPassword().equals(e.getPassword())){
            e.setPassword(DigestUtils.md5DigestAsHex(
                    passwordEditDTO.getNewPassword().getBytes()));
            employeeMapper.update(e);
        }
        else throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
    }

}
